CN215100951U - Long shaft transmission structure - Google Patents

Abstract

The utility model discloses a long shaft transmission structure, which comprises a transmission component for transmitting film materials, wherein the transmission component comprises at least two transmission rollers, and the axial leads of the transmission rollers are parallel; at least one transmission roller is connected with a driving device, and the driving device drives the transmission roller to rotate around the axis line of the transmission roller; the roller surfaces of two adjacent transmission rollers are matched to compress materials and are matched with each other in a rotating way to convey the materials, pressing parts are arranged on the feeding side and the discharging side of each transmission assembly, and the pressing parts are in matched pressure contact with the roller surfaces of the adjacent transmission rollers. This major axis transmission structure acts on the transmission roller of transmission assembly both sides through executing the casting die, reduces the clearance variation between two adjacent transmission rollers in the transmission assembly to in guaranteeing the transportation process, the both sides of film receive the same frictional force everywhere, and then have realized the stable transmission of material, have prolonged the life of device.

Description

Long shaft transmission structure

Technical Field

The utility model belongs to the technical field of the transmission technique and specifically relates to a major axis transmission structure is related to.

Background

When the film-shaped materials are conveyed, various long-strip-shaped conveying rollers are generally used, for example, the Chinese utility model with the publication number of CN202557855U discloses a film conveying and cutting device, which comprises a film conveying driving roller, a compression roller matched with the film conveying driving roller, a film conveying driven roller, a compression roller matched with the film conveying driven roller and a rotatable film cutting knife, wherein the film cutting knife is positioned between the film conveying driving roller and the film conveying driven roller. The film feeding and cutting device realizes the film conveying through a film feeding driving roller and a pressing roller which are matched with each other and a film feeding driven roller and a pressing roller which are matched with each other.

However, in the film feeding device, the film feeding driving roller, the film feeding driven roller (hereinafter, referred to as "rollers") and the press roller are all in a long strip shape, and in the matching use process, the rollers and the press roller respectively press two sides of the film, after long-term use, the rollers and the press roller are easy to deform, so that gaps between the rollers and the press roller are changed, in the conveying process, the pressures of the rollers and the press roller on the film are inconsistent, so that differences exist between the friction forces of the films conveyed on the positions of the rollers and the press roller along the length direction of the film, and due to the existence of the differences, the conveying distance of the film is inconsistent, so that the transmission quality is influenced, and the service life of the device is shortened.

Therefore, there is a need for an improved thin film transfer structure in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide a long axis transmission structure who guarantees transmission quality and increase of service life.

In order to realize the technical effects, the utility model adopts the technical scheme that: a long shaft transmission structure comprises a transmission assembly for transmitting a film-shaped material, wherein the transmission assembly comprises at least two transmission rollers, and the axial lines of the transmission rollers are parallel; at least one transmission roller is connected with a driving device, and the driving device drives the transmission roller to rotate around the axis line of the transmission roller; the roller surfaces of two adjacent transmission rollers are matched to compress materials and are matched to convey the materials in a rotating mode, pressing parts are arranged on the feeding side and the discharging side of each transmission assembly, and the pressing parts are in matched pressure contact with the roller surfaces of the adjacent transmission rollers.

When the long shaft transmission structure of the technical scheme operates, the pressing piece acts on the roller surfaces of the transmission rollers on the feeding side and the discharging side of the transmission assembly, so that the transmission rollers on two sides of the transmission assembly have the tendency of moving to the center of the transmission assembly, the change of the gap between two adjacent transmission rollers in the transmission assembly is reduced, when a material film passes through the two transmission rollers, stable and consistent acting force is applied to the film everywhere by the transmission rollers on two sides of the film, the equal friction force between the contact part of the transmission rollers and the film everywhere is ensured, the transmission moving distance of the film is consistent everywhere, therefore, the stable transmission of the film material is realized, and the effective service cycle of the device is prolonged.

Preferably, the pressing piece is a pressing roller assembly, the pressing roller assembly comprises a rotatably arranged pressing roller, and the roller surface of the pressing roller is in pressure rolling fit with the roller surface of the transmission roller.

By adopting the technical scheme, the friction force between the transmission roller and the pressure applying roller which is arranged in a rotating way is ensured to be rolling friction force, so that the resistance to rotation of the transmission roller is reduced, the electric energy loss of the driving device during operation is further reduced, and the energy conservation and environmental protection of the device are facilitated.

Preferably, the number of the pressure applying rollers is two, the transmission roller adjacent to the pressure applying roller is a pressure transmitting roller, the transmission roller adjacent to the pressure transmitting roller is a pressure receiving roller, the plane where the axial line of the pressure transmitting roller and the axial line of the pressure receiving roller are located is a pressure transmitting surface, and the two pressure applying rollers are respectively arranged on two sides of the pressure transmitting surface.

Through adopting above-mentioned technical scheme, act on the transmission roller on transmission assembly feed side and the ejection of compact side from the upper and lower both sides of passing the pressure face to avoided the transmission roller to slide from top to bottom along the direction of perpendicular to passing the pressure face, thereby be favorable to realizing the stable transmission of film material.

Preferably, the two pressure applying rollers are equidistant from the pressure transfer surface.

By adopting the technical scheme, the two pressure applying rollers are ensured to be in mirror symmetry about the pressure transmitting surface, so that the two pressure applying rollers apply pressure to the transmission roller from the positions radially symmetrical about the pressure transmitting surface respectively, the pressure applying rollers are prevented from sliding along the direction vertical to the pressure transmitting surface, the stable rotation of the pressure applying rollers is further ensured, and the stable transmission of film materials is favorably realized.

Preferably, the distribution direction of the conveying rollers is vertical to the axial lead of the conveying rollers; the number of the compression roller assemblies on two sides of the conveying assembly is three, one compression roller assembly is a single compression roller assembly, the other two compression roller assemblies are double compression roller assemblies arranged in pairs, and the single compression roller assembly is arranged between the two double compression roller assemblies.

Through adopting above-mentioned technical scheme, reduced compression roller assembly's total quantity, simplified the structure to the cost is reduced, in addition, among the three compression roller assembly, one of them and two other are exerted pressure respectively to the transmission roller of transmission assembly both sides, and single compression roller assembly sets up in two between the double compression roller assembly, guaranteed the scope of exerting pressure.

Preferably, the single-press roll assembly is in contact with a middle portion of the transfer roll.

Through adopting above-mentioned technical scheme for the single compression roller subassembly is pressed pressure to the transmission roller from the center department of transmission roller, has guaranteed that the transmission roller atress in single compression roller subassembly department is even.

Preferably, the distance between the two double pressure roller assemblies and the single pressure roller assembly is equal.

Through adopting above-mentioned technical scheme for the transmission roller atress of two double pressure roller assembly departments is even, further reduces the clearance variation between two adjacent transmission rollers of this department, thereby realizes the stable transmission of film material.

Preferably, one of the two adjacent conveying rollers is provided with a plurality of annular emptying grooves along the length direction, and the axial line of each emptying groove is superposed with the axial line of the conveying roller.

Through adopting above-mentioned technical scheme, one of them, be favorable to the air between film and the transmission roller to discharge through the evacuation groove, avoid remaining the air between film and the transmission roller, lead to remaining air excessively to receive the extrusion and damage the film, its two, when the film transmits through the space between two transmission rollers, the film receives the extrusion of transmission roller and takes place to warp, can hold the deformation part of film through the evacuation groove this moment, guide the deformation direction of film, thereby reduce the film and warp to its width direction, reduce the adverse effect that transmission roller extrusion effort brought for the film, guarantee the quality of film after the transmission.

Preferably, the compression roller assembly is connected with a translation device for driving the compression roller assembly to move, and the moving direction of the compression roller assembly is perpendicular to the length direction of the compression roller assembly and parallel to the corresponding pressure transfer surface.

Through adopting above-mentioned technical scheme, utilize the translation device to drive compression roller assembly and remove, change its position to adjust its pressure to the transmission roller, thereby avoid the too big rotation that influences the transmission roller of pressure to influence the transmission of film, avoid the pressure undersize and lead to the extrusion effort undersize to the transmission roller simultaneously, so, be favorable to adjusting the pressure of compression roller assembly to the transmission roller, thereby realize the stable transmission of film.

Preferably, the transmission roller of transmission assembly feed side and/or ejection of compact side is connected with the pressure regulating subassembly, the pressure regulating subassembly is used for adjusting the pressure between transmission roller and the material.

Through adopting above-mentioned technical scheme, utilize the pressure between adjusting part regulation transmission roller and the material, avoid transmitting between roller and the material pressure undersize, frictional force is lower between material and the transmission roller, is difficult to realize the material transmission, avoids simultaneously transmitting between roller and the material pressure too big, leads to frictional force between the two too big, increases the energy consumption that the material was carried.

Preferably, the conveying roller is arranged in a swinging mode along the direction perpendicular to the axis line of the conveying roller.

By adopting the technical scheme, the conveying rollers are swung along the direction vertical to the axial lead of the conveying rollers, and the gap between the adjacent conveying rollers is adjusted, so that the pressure between the conveying rollers and the material is adjusted.

Preferably, the both ends of transmission assembly are just to being provided with the mounting panel, two all rotate on the mounting panel and be provided with the mount pad, the both ends of transmission roller respectively with two the mount pad is connected, the pressure regulating subassembly includes the translation device, the output of translation device with mount pad looks butt.

Through adopting above-mentioned technical scheme, the translation device starts, and its output butt is on the mount pad for the mount pad drives the transmission roller and carries out certain angle's rotation, adjusts the pressure between transmission roller and the material.

Preferably, the translation device comprises an air cylinder, a cylinder barrel of the air cylinder is arranged on the mounting plate, a piston rod of the air cylinder is fixedly connected with a push block, and the push block is abutted to the mounting seat.

By adopting the technical scheme, the cylinder is started to drive the piston rod to move, the push block is driven to move, the push block is abutted against the mounting seat, the mounting seat drives the transmission roller to rotate, and the pressure between the transmission roller and the material is adjusted.

Preferably, the push block is in contact with the mounting seat surface.

Through adopting above-mentioned technical scheme, utilize the face contact between ejector pad and the mount pad, guarantee the good contact between ejector pad and the mount pad, avoid behind the area of contact undersize between ejector pad and the mount pad, because pressure is too big, lead to the pressure between ejector pad and the mount pad too big, produce the dent on ejector pad and mount pad.

Preferably, the cylinder barrel of the air cylinder is rotatably connected with the mounting plate, and the mounting plate is provided with a limiting part for limiting the rotation angle of the cylinder barrel of the air cylinder.

Through adopting above-mentioned technical scheme, utilize the cylinder of cylinder to rotate to be connected, be convenient for adjust the turned angle of ejector pad for keep good face contact between ejector pad and the mount pad, through the turned angle of locating part restriction cylinder, when guaranteeing that the cylinder drives the flexible removal of ejector pad, the ejector pad can contact with the mount pad.

Preferably, an opening is formed in the mounting plate, the cylinder barrel of the air cylinder is arranged in the opening, a fixing seat is fixedly connected with the cylinder barrel of the air cylinder, the fixing seat is rotatably connected with the mounting plate, and the limiting part is an inner bottom wall of the opening.

Through adopting above-mentioned technical scheme, set up the opening on the mounting panel, set up the cylinder barrel in the opening, utilize open-ended interior diapire as support piece, reduce the manufacturing material of mounting panel, reduce the manufacturing cost of device.

Preferably, the pushing block is fixedly connected with a cross bar, and the pressing piece is arranged on the cross bar.

By adopting the technical scheme, the pressure contact between the pressing piece and the transmission roller in the rotation process of the transmission roller along with the installation seat is ensured, so that the stable conveying of materials is ensured.

Preferably, the driving device comprises at least two transmission gears, the transmission gears are in one-to-one correspondence with the transmission rollers and are fixedly connected in a coaxial mode, and the transmission gears corresponding to two adjacent transmission rollers are meshed with each other.

Through adopting above-mentioned technical scheme, when one of them transmission roller of drive arrangement drive rotated, drive the drive gear rotation on this transmission roller, drive gear acts on rather than the drive gear of meshing to the forced rotation of the other transmission rollers of drive, and then the roll surface pivoted linear velocity of guarantee each transmission roller is the same, makes the both sides feed speed of film material unanimous, thereby is favorable to the stable transport of film material.

Preferably, three conveying rollers are arranged and distributed along the direction perpendicular to the length direction; among the three transmission rollers, the transmission roller positioned at the center is a driving roller connected with a driving device, and the other two transmission rollers are driven rollers.

Through adopting above-mentioned technical scheme for when the transmission assembly moves, the space between the transmission roller of process has two, guarantees the stable transmission of film, sets up the transmission roller that the central point put into the drive roll simultaneously, has reduced drive arrangement's quantity, is favorable to driving the transmission roller rotation of its both sides through a transmission roller, realizes the transmission of film material.

To sum up, the utility model discloses major axis transmission structure reduces the clearance variation between two adjacent transmission rollers in the transmission assembly on acting on the transmission roller of transmission assembly both sides through the casting die to in guaranteeing the transportation process, the both sides of film receive the same friction effort everywhere, and then have realized the stable transmission of material, have prolonged the life of device.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a schematic structural view of a press roll assembly according to embodiment 1 of the present invention;

fig. 5 is a schematic structural view of a driving device according to embodiment 1 of the present invention;

FIG. 6 is a top view of FIG. 1;

FIG. 7 is a sectional view taken along line A-A of FIG. 6;

FIG. 8 is an enlarged view of portion B of FIG. 7;

FIG. 9 is a schematic structural view of a single-press roller assembly and a transmission assembly in embodiment 1 of the present invention;

fig. 10 is a schematic structural view of the dual pressure roller assembly and the transmission assembly according to embodiment 1 of the present invention;

fig. 11 is a schematic structural view of embodiment 2 of the present invention;

fig. 12 is a schematic structural view of embodiment 3 of the present invention;

FIG. 13 is an enlarged view of section D of FIG. 12;

in the figure: 1. the automatic feeding device comprises a transmission assembly, a transmission roller, a driving roller, a driven roller, a driving gear, a driven gear, a synchronous belt, a transmission gear, a transmission roller, a compression roller, a driven roller, a driving device, a motor, a driving gear, a driven gear, a synchronous belt, a transmission gear, a compression roller assembly, a pressing roller, a fixing block, a positioning hole, a support, a translation device, a cylinder, a pushing block, a fixing seat, a pin shaft, a mounting plate, an opening, a bearing, a mounting seat, a limiting block, a transverse bar, a jack, a vertical bar and a first pin shaft, wherein the transmission assembly comprises 1a transmission roller, 1aa, a driving roller, 1ab., 1a-1 emptying groove, 1a1. a compression roller, 1a compression roller, 2a driven roller, 2d, a synchronous belt, 2e, a transmission gear, 3a compression roller assembly, 3a pressing roller, a fixing block, 3b-1 a positioning hole, a support, a translation device, a cylinder, a pushing block, 4c fixing seat, a second pin shaft, a mounting plate, an opening, a bearing, a transverse bar, a jack, a vertical bar and a first pin shaft.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1

As shown in fig. 1 to 10, the long-axis transmission structure of embodiment 1 includes two parallel mounting plates 5, a transmission assembly 1 for transmitting a film-like material is disposed between the two mounting plates 5, the transmission assembly 1 includes two transmission rollers 1a whose axes are parallel and are rotatably disposed, one of the two transmission rollers 1a is a driving roller 1aa whose surface is smooth, two ends of the driving roller 1aa are provided with bearings 6, the bearings 6 are disposed on the mounting plates 5, the other is a driven roller 1ab, the driven roller 1ab is provided with a plurality of evacuation slots 1a-1 along its length direction, and the axes of the evacuation slots 1a-1 coincide with the axes of the driven roller 1 ab; the driving roller 1aa is connected with a driving device 2, the driving device 2 is arranged on one of the mounting plates 5, and the driving device 2 drives the driving roller 1aa to rotate around the axis line thereof; the roller surfaces of the driving roller 1aa and the driven roller 1ab are matched to compress materials and are matched to convey the materials in a rotating mode. The feeding side (i.e. the side of the driving roller 1aa back to the driven roller 1ab) and the discharging side (i.e. the side of the driven roller 1ab back to the driving roller 1 aa) of the transmission assembly 1 are both provided with pressing pieces, and the pressing pieces are attached to the roller surfaces of the adjacent transmission rollers 1a.

When the long shaft transmission structure of the embodiment operates, a film-shaped material passes through a gap between the driving roller 1aa and the driven roller 1ab, the driving device 2 operates to drive the driving roller 1aa to rotate around the axis line of the driving roller, and the driven roller 1ab rotates in the direction opposite to the driving roller 1aa while the material rotates between the driving roller 1aa and the driven roller 1ab through friction force, so that the material is transmitted. In order to reduce the deformation of the gap between the driving roller 1aa and the driven roller 1ab and influence the transmission of materials, the pressing pieces on the two sides of the transmission assembly 1 are used for pressing the driving roller 1aa and the driven roller 1ab respectively, so that the deformation of the gap between the two transmission rollers 1a is reduced, the equal and consistent friction force of the film materials at each position on the driving roller 1aa and the driven roller 1ab is ensured, the film materials move along the direction perpendicular to the width of the film materials, and the stable transmission of the materials is ensured.

In the two transmission rollers 1a, the surface of the driven roller 1ab is provided with an evacuation groove 1a-1 (as shown in fig. 2), and by adopting the design, on one hand, in the transmission process, air between the film and the driven roller 1ab is conveniently discharged through the evacuation groove 1a-1, so that the smoothness of film transmission is ensured, and the phenomenon that the film is damaged due to excessive extrusion of the air in the film after the air is remained between the film and the driven roller 1ab is avoided; on the other hand, in the transmission process, the driving roller 1aa and the driven roller 1ab respectively extrude the thin film from two sides of the thin film, the thin film is extruded to deform, and at the moment, the emptying groove 1a-1 can accommodate the deformed part of the thin film, so that the deformation of the thin film towards two sides of the width direction of the thin film is reduced, and the transmission quality of the thin film is influenced.

As shown in fig. 5, in order to drive the driving roller 1aa to rotate, the driving device 2 includes a motor 4a fixed on one of the mounting plates 5, an output shaft of the motor 4a is coaxially and fixedly connected with a driving gear 2b, and further includes a synchronous belt 2d and a driven gear 2c, the driving gear 2b and the driven gear 2c are respectively rotatably arranged at two ends of the inner side of the synchronous belt 2d, and the driven gear 2c is coaxially and fixedly connected with the driving roller 1aa.

When the equipment is operated, motor 4a starts, and it is rotatory to drive gear 2b, and drive gear 2b acts on the inboard dogtooth of hold-in range 2d to drive hold-in range 2d and rotate, the dogtooth of hold-in range 2d other end position acts on driven gear 2c, and drive driven gear 2c rotates, thereby realizes the rotation of drive roll 1aa, carries out the transmission of film material.

As shown in fig. 4, the pressing roller assembly 3 includes a fixing block 3b, a bracket 3c is fixed on one side of the fixing block 3b adjacent to the conveying roller 1a, two pressing rollers 3a are rotatably arranged on the bracket 3c, and the roller surface of the pressing roller 3a is attached to the roller surface of the conveying roller 1a adjacent thereto.

When the pressing piece presses the transmission roller 1a, the pressing piece is in contact with the roller surface of the transmission roller 1a, and at the moment, the pressing roller 3a is arranged in a rotating mode, so that the relative friction between the pressing roller 3a and the transmission roller 1a is reduced, the transmission roller 1a rotates in the aspect of rotation, the energy consumption of the driving device 2 in the operation process is reduced, and the energy saving is facilitated.

In order to further realize stable transmission of materials, the transmission roller 1a adjacent to the pressure applying roller 3a is a pressure transmitting roller 1a1, the transmission roller 1a adjacent to the pressure transmitting roller 1a1 is a pressure receiving roller 1a2, the plane where the axial line of the pressure transmitting roller 1a1 and the axial line of the pressure receiving roller 1a2 are located is a pressure transmitting surface, and the two pressure applying rollers 3a are respectively arranged on two sides of the pressure transmitting surface and have the same distance with the pressure transmitting surface. As shown in fig. 9, the driven roller 1ab is adjacent to the roller assembly 3 assembly, i.e. is the pressure-transmitting roller 1a1, and the driving roller 1aa adjacent to the pressure-transmitting roller 1a1 is the pressure-receiving roller 1a 2; as shown in fig. 10, the driving roller 1aa is adjacent to two platen roller assemblies 3, i.e., a pressure-transmitting roller 1a1, and the driven roller 1ab adjacent to the pressure-transmitting roller 1a1 is a pressure-receiving roller 1a2.

By adopting the design, the two pressure applying rollers 3a are symmetrically distributed about the pressure transmitting surface mirror, so that the attaching parts of the two pressure applying rollers 3a and the transmission roller 1a are symmetrical about the pressure transmitting surface, the resultant force direction of the pressure applied by the two pressure applying rollers 3a to the transmission roller 1a is parallel to the pressure transmitting surface, and the transmission roller 1a is prevented from sliding up and down on the pressure transmitting surface, so that the transmission roller 1a is influenced by the two pressure applying rollers 3a and generates the trend of moving along the direction parallel to the pressure transmitting surface.

In order to reduce the number of parts of the apparatus and reduce the production cost of the apparatus, as shown in fig. 1 and 6, three compression roller assemblies 3 are provided, wherein two compression roller assemblies 3 adjacent to the driving roller 1aa are provided, two compression roller assemblies 3 are dual compression roller assemblies provided in pairs, the two dual compression roller assemblies are in contact with both end portions of the driving roller 1aa, one compression roller assembly adjacent to the driven roller 1ab is provided, and the compression roller assembly is a single compression roller assembly in contact with a central portion of the driven roller 1ab.

By adopting the structure mode, on one hand, the number of the compression roller assemblies 3 is reduced, the production cost of the equipment is reduced, on the other hand, the single compression roller assembly applies pressure from the center of the driven roller 1ab, and the two double compression roller assemblies apply pressure from the two end parts of the driving roller 1aa to form a triangular structure with a stable structure, so that the uniform pressure of the driving roller 1aa and the driven roller 1ab on the two sides of the film is ensured, and the stable transmission of the film material is facilitated.

As shown in fig. 1 and 4, in order to fix the fixing block 3b in the press roller assembly 3, two positioning holes 3b-1 are formed in the fixing block 3b, transverse bars 9 are arranged on the upper side and the lower side of the fixing block 3b, the two transverse bars 9 are fixedly connected through a plurality of vertical bars 10 which are distributed at intervals, and two insertion holes 9-1 which correspond to the positioning holes 3b-1 one by one and are in insertion fit with the positioning holes 9 b-1 are formed in the transverse bars 9.

By adopting the design, the fixed block 3b in the compression roller component 3 is conveniently and fixedly arranged on the transverse bar 9 by utilizing the insertion fit between the positioning hole 3b-1 and the insertion hole 9-1, and when the compression roller component 3 needs to be replaced, the compression roller component 3 can be taken down from the transverse bar 9 below only by taking down the transverse bar 9 above, then a new compression roller component is replaced, the transverse bar 9 above is placed on the fixed block 3b, so that the fixed block 3b can be fixed in position by inserting the bolt after the insertion hole 9-1 is aligned with the positioning hole 3b-1, and the compression roller component 3 is convenient to replace and install.

As shown in fig. 1, mounting plates 5 are provided at both ends of the transmission assembly 1, and both ends of the cross bar 9 adjacent to the drive roll 1aa are fixed to the two mounting plates 5, thus fixing the position of the compression roll assembly 3 adjacent to the drive roll 1aa.

As shown in fig. 1 and 3, the driven roller 1ab is connected with a pressure regulating assembly for regulating the pressure between the driven roller 1ab and the material; the driven roller 1ab is arranged to swing in a direction perpendicular to the axis thereof. The mounting plate 5 is vertically fixed with a first pin shaft 11, the mounting seat 7 is sleeved outside the first pin shaft 11, the mounting seat 7 is connected with a driven roller 1ab, the pressure regulating assembly comprises a translation device 4, the translation device 4 comprises an air cylinder 4a, a fixing seat 4c is fixed on a cylinder barrel of the air cylinder 4a, the fixing seat 4c is sleeved outside a second pin shaft 4d vertically and fixedly connected with the mounting plate 5, an opening 5-1 is formed in the mounting plate 5, the cylinder barrel of the air cylinder 5a is arranged in the opening 5-1, an inner bottom wall of the opening 5-1 is a limiting part 8 for limiting the rotating angle of the cylinder barrel of the air cylinder 5, a piston rod of the air cylinder 5a is fixedly connected with a push block 4b, one side surface of the push block 4b is abutted against the other side surface of the mounting seat 7, and two ends of a cross bar 9 adjacent to the driven roller 1ab are respectively fixedly connected with the two push blocks 4b.

By adopting the design, the inner bottom wall of the opening 5-1 is used as the limiting part 8 for limiting the rotation angle of the cylinder barrel of the cylinder 4a, so that when the cylinder 4a drives the push block 4b to move telescopically, the side surface of the push block 4b can be kept in good surface contact with the side surface of the mounting seat 7, the mounting seat 7 drives the driven roller 1ab to swing around the axis of the first pin shaft 11, the pressure between the driven roller 1ab and the film material is adjusted, the pressure between the driving roller 1aa and the film is adjusted, the phenomenon that the pressure of the two transmission rollers 1a on the material is overlarge is avoided, the energy consumption for driving the two transmission rollers 1a to rotate is increased, and the phenomenon that the pressure of the two transmission rollers 1a on the material is too small, so that the friction force is too low and the stable transmission of the film material is influenced is avoided. In addition, the pushing block 4b is fixedly connected with the cross bar 9, so that the pressing roller 3a in the pressing roller assembly 3 is always in contact with the driven roller 1ab in the process of rotating and adjusting the position of the driven roller 1ab, and the state of press fit between the roller surface of the pressing roller 3a and the roller surface of the driven roller ab is maintained. It should be noted that the pressure regulating assembly may also adopt other mechanical structure modes to regulate the transmission pressure between the driven roller 1ab and the material.

The two ends of a transverse bar 9 adjacent to the driving roller 1aa are fixedly connected with the two mounting plates 5 respectively, the two ends of the transverse bar 9 adjacent to the driven roller 1ab are connected with air cylinders 4a, cylinder barrels of the air cylinders 4a are fixedly connected with the mounting plates 5 through fixing seats 4c, piston rods of the air cylinders 4a are fixedly connected with push blocks 4b, the length direction of the piston rods is perpendicular to the axial lead direction of the transmission roller 1a and is parallel to a pressure transmission surface, openings 5-1 are formed in the mounting plates 5, the push blocks 4b are fixedly connected with the mounting plates 5 through the openings 5-1, the two push blocks 4b are fixedly connected through transverse bars 4e, the number of the transverse bars 4e is two, and the two transverse bars 4e are fixedly connected through a plurality of vertical bars 10.

By adopting the design, on one hand, the position of the pressing roll component 3 at one side of the driving roll 1aa is convenient to fix, so that the position of the pressing roll 3a in the pressing roll component 3 is fixed, the roll surface of the pressing roll 3a is attached to the roll surface of the transmission roll 1a, so that the transmission roll 1a is extruded, on the other hand, on one side of the driven roll 1abd, the air cylinder 4a, the transverse bar 9, the fixed seat 4c, the push block 4b and the vertical bar 10 form the translation device 4, the air cylinder 4a drives the push block 4b to move, so that the position of the transverse bar 9 is changed, the position of the pressing roll 3a can be adjusted, the extrusion acting force of the pressing roll 3a on the driven roll 1ab is adjusted, after the pressing roll 3a is far away from the transmission roll 1a, the transverse bar 9 at the upper part is separated from the fixed block 3b, the fixed block 3b is convenient to take out, a new pressing roll component 3 is placed on the transverse bar 3b at the lower part, then the transverse bar 9 is arranged on the fixing block 3b, and the positioning hole 3b-1 is in inserting fit with the jack 9-1 to finish the replacement of the compression roller component 3.

Example 2

As shown in fig. 11, the major axis transmission structure of embodiment 2 is based on embodiment 1 except that three transmission rollers 1a are provided, the three transmission rollers 1a are distributed side by side, wherein the transmission roller 1a located at the center is a driving roller 1aa connected to a driving device 2, and two are driven rollers 1 ab; the two ends of the driven roller 1ab on the two sides of the driving roller are both connected with pressure regulating components.

In this embodiment, the driving device 2 drives the driving roller 1aa at the center to rotate, so as to drive the driven rollers 1ab at the two sides of the driving roller to rotate, and the material is conveyed through the gaps at the two sides of the driving roller 1aa. Compared with the embodiment 1, the embodiment further ensures that the transmission distances of the materials are consistent through extruding the driven rollers 1ab corresponding to the two gaps, and is favorable for realizing stable conveying of the film-shaped materials. The compression roller assembly 3 presses the driven rollers 1ab on both sides, and the driving roller 1aa is located between the two driven rollers 1ab, in which case both the driven rollers 1ab are the compression transmitting rollers 1a1, and the driving roller 1aa is the compression receiving roller 1a2. When the device is operated, the both sides of transmission assembly 1 all are provided with the pressure regulating subassembly, cylinder 4a through the pressure regulating subassembly moves, drive ejector pad 4b removes, drive mount pad 7 rotation when driving horizontal bar 9 and removing, thereby change the position of driven voller 1ab, adjust the pressure between driven voller 1ab and the film material, avoid drive roll 1aa and driven voller 1ab to the too big or undersize of pressure of film material both sides, guarantee so drive roll 1aa, suitable transmission pressure between driven voller 1ab and the film material, and then realize the stable transport of material.

Example 3

As shown in fig. 12 and 13, the long-axis transmission structure of embodiment 3 is based on embodiment 1, and is different in that the driving device 2 further includes two transmission gears 2e, the two transmission gears 2e are respectively in one-to-one correspondence with the two transmission rollers 1a (i.e., the driving roller 1aa and the driven roller 1ab) and are coaxially and fixedly connected, and the two transmission gears 2e are engaged with each other.

After the design is adopted, when the motor 4a drives the driving gear 2b to rotate, the synchronous belt 2d drives the driven gear 2c to rotate, so that after the driving roller 1aa rotates, the driving gear 2e on the driving roller 1aa is driven to rotate, the driven roller 1ab is driven to rotate forcibly through the two mutually meshed driving gears 2e, and the rotating linear speeds of the roller surfaces of the two transmission rollers 1a are the same. Because two transmission rollers 1a and film material both sides in close contact with, even the coefficient of friction of film material both sides differs great, nevertheless because the roll surface rotational speed of two transmission rollers 1a is unanimous, still can guarantee that material both sides conveying speed is unanimous, and then guaranteed the stable transmission of film material.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A long shaft transmission structure comprises a transmission assembly (1) for transmitting film-shaped materials, wherein the transmission assembly (1) comprises at least two transmission rollers (1 a), and the axial lines of the transmission rollers (1 a) are parallel; at least one transmission roller (1 a) is connected with a driving device (2), and the driving device (2) drives the transmission roller (1 a) to rotate around the axis line of the transmission roller; the cooperation compresses tightly the material and normal running fit transport material between the roll surface of two adjacent transmission rollers (1 a), its characterized in that:

the feeding side and the discharging side of the transmission assembly (1) are both provided with pressing pieces, and the pressing pieces are in matched pressure contact with the roll surfaces of the adjacent transmission rolls (1 a).

2. The long axis transmission structure of claim 1, wherein: the pressing piece is a pressing roller assembly (3), the pressing roller assembly (3) comprises a pressing roller (3 a) which is rotatably arranged, and the roller surface of the pressing roller (3 a) is in pressure rolling fit with the roller surface of the transmission roller (1 a).

3. The long axis transmission structure of claim 2, wherein: the two pressure applying rollers (3 a) are arranged, the transmission roller (1 a) adjacent to the pressure applying roller (3 a) is a pressure transmitting roller (1a 1), the transmission roller (1 a) adjacent to the pressure transmitting roller (1a 1) is a pressure receiving roller (1a2), the plane where the axial lead of the pressure transmitting roller (1a 1) and the axial lead of the pressure receiving roller (1a2) are located is a pressure transmitting surface, and the two pressure applying rollers (3 a) are respectively arranged on two sides of the pressure transmitting surface; the two press rollers (3 a) are at equal distances from the pressure transfer surface.

4. The long axis transmission structure of claim 2, wherein: the distribution direction of the conveying rollers (1 a) is vertical to the axial lead thereof; the number of the compression roller assemblies (3) on two sides of the transmission assembly (1) is three, one compression roller assembly (3) is a single compression roller assembly, the other two compression roller assemblies are dual compression roller assemblies arranged in pairs, and the single compression roller assembly (3) is arranged between the two dual compression roller assemblies; the single-press roll assembly is in contact with the middle part of the conveying roll (1 a); the distance between the two double-pressure roller assemblies and the single-pressure roller assembly is equal.

5. The long axis transmission structure of claim 1, wherein: one of the two adjacent conveying rollers (1 a) is provided with a plurality of annular emptying grooves (1 a-1) along the length direction, and the axial line of the emptying groove (1 a-1) is superposed with the axial line of the conveying roller (1 a).

6. The long axis transmission structure of claim 1, wherein: the conveying roller (1 a) of the feeding side and/or the discharging side of the conveying assembly (1) is connected with a pressure regulating assembly, and the pressure regulating assembly is used for regulating the pressure between the conveying roller (1 a) and the material.

7. The long axis transmission structure of claim 6, wherein: the conveying roller (1 a) is arranged in a swinging mode along the direction perpendicular to the axial lead of the conveying roller; mounting plates (5) are arranged at two ends of the transmission assembly (1) in a dead-against mode, mounting seats (7) are rotatably arranged on the two mounting plates (5), two ends of the transmission roller (1 a) are respectively connected with the two mounting seats (7), the pressure regulating assembly comprises a translation device (4), and the output end of the translation device (4) is abutted to the mounting seats (7); the translation device (4) comprises an air cylinder (4 a), a cylinder barrel of the air cylinder (4 a) is arranged on the mounting plate (5), a piston rod of the air cylinder (4 a) is fixedly connected with a push block (4 b), and the push block (4 b) is in surface contact with the mounting seat (7).

8. The long axis transmission structure of claim 7, wherein: the cylinder barrel of the cylinder (4 a) is rotatably connected with the mounting plate (5), and a limiting piece (8) used for limiting the rotation angle of the cylinder barrel of the cylinder (4 a) is arranged on the mounting plate (5); the mounting plate (5) is provided with an opening (5-1), a cylinder barrel of the air cylinder (4 a) is arranged in the opening (5-1), a fixed seat (4 c) is fixedly connected with the cylinder barrel of the air cylinder (4 a), the fixed seat (4 c) is rotatably connected with the mounting plate (5), and the limiting part (8) is an inner bottom wall of the opening (5-1).

9. The long axis transmission structure of claim 7, wherein: the pushing block (4 b) is fixedly connected with a cross bar (9), and the pressing piece is arranged on the cross bar (9).

10. The long axis transmission structure of claim 1, wherein: the driving device (2) comprises at least two transmission gears (2 e), the transmission gears (2 e) are in one-to-one correspondence with the transmission rollers (1 a) and are fixedly connected coaxially, and the transmission gears (2 e) which are more corresponding to the two adjacent transmission rollers (1 a) are meshed with each other.

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